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Phantasy [73]
3 years ago
9

Which of the following relations is a function?

Mathematics
2 answers:
melamori03 [73]3 years ago
6 0
A.

Option A is the answer since a function does NOT contain repeating x-values. In option A, it has the x-values of 1, 2, 4, 9 which do NOT repeat.
trasher [3.6K]3 years ago
5 0

Answer:

a{(1, 3), (2, 3), (4,3), (9,3)}

Step-by-step explanation:

For the relation to be a function, each x can only go to 1 y

a{(1, 3), (2, 3), (4,3), (9,3)}

function

b{(1, 2), (1, 3), (1, 4), (1,5)}

x=1 goes to 4 different y's so not a function

c{(5, 4), (-6, 5), (4, 5), (4, 0)}

x=4 goes to 2 different y's so not a function

d{(6,-1), (1,4), (2, 3), (6, 1)}​

x = 6 goes to 2 different y's so not a function

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3/4 is added to x, the result is 9/8. What is the value of x?
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Answer:

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turn 3/4 into a fraction that has a denominator of 8 3/4x2= 6/8

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Find the slope and the y-intercept of the line.
Hitman42 [59]

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6 0
3 years ago
One freezer costs $623.95 and uses 90 kilowatt hours (kwh) of electricity each month. A second freezer costs $500 and uses 100 k
lutik1710 [3]

The minimum electric rate in cents per kwh for which the 12-year total cost will be less for the first freezer is 8.61 cents

<h3>How to calculate the rate?</h3>

Let x =  minimum electric rate (Cents/kWh)

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= 623.95 + 129.6x

2nd freezer

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For the 1st freezer to cost less over 12 years,

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The minimum rate is 8.61 cents per kWh

Learn more about rate on:

brainly.com/question/25537936

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